# Autodesk Fusion vs STL Viewer

The clearest difference is price: Autodesk Fusion at Free against STL Viewer's $0.99. Autodesk Fusion also leads on in-app purchases (none vs 5) and ratings volume (4.1K vs 1). STL Viewer's advantage is review sentiment (100% vs 60%) and rating (5.0 vs 4.5). On update cadence, ads and device support there is nothing between them.

Autodesk Fusion is free to download; STL Viewer costs $0.99 up front. STL Viewer sells 5 in-app purchases, starting at $2.99 per month. Autodesk Fusion asks for nothing beyond the download.

STL Viewer holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Autodesk Fusion has 4.1K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of Autodesk Fusion's written reviews are positive against 100% of STL Viewer's.

Autodesk Fusion ships an update monthly, STL Viewer every 4 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Autodesk Fusion | STL Viewer |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.5 (4.1K ratings)](https://appshunter.io/ios/app/autodesk-fusion/id991074843/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stl-viewer-3d-mesh/id6445801487/reviews)** |
| Number of ratings | **4.1K** | 1 |
| Positive reviews | 59.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | **Free** | Paid |
| Size | 124 MB | 5 MB |
| Requires iOS | **13** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Autodesk Inc.](https://appshunter.io/developer/295089690) | [Felipe Marques de Barros](https://appshunter.io/developer/1459294806) |

## What reviewers say

### Autodesk Fusion

[App page](https://appshunter.io/ios/app/autodesk-fusion/id991074843)

Collaborate on 3D designs from anywhere with this mobile app. View, comment on, and share CAD models in over 100 formats. It works with a companion cloud-based desktop product for product design and development.

**Highlights:** View over 100 file formats, Collaborate on 3D designs, Comment on project activities, Share designs with stakeholders, Search and highlight parts, Offline data access

**In-app purchases:** none

**What reviewers like**

- 🚀 Great for showing designs
- 👍 Easy to use and understand
- 💡 Powerful CAD/CAM capabilities
- 🚀 Convenient for collaboration

**What reviewers complain about**

- 🐛 Crashes and login issues
- 👎 Limited functionality compared to desktop version
- 👎 Constantly logs out
- 🐛 Buggy and unreliable

**Reported bugs**

- Fails to open files
- White screens and rendering issues
- Inconsistent behavior across devices
- Frequent crashes on latest iOS versions

**Requested features**

- Full editing capabilities on iPad
- Ability to hide/show components
- Improved rendering and visualization
- Offline access and file management


### STL Viewer

[App page](https://appshunter.io/ios/app/stl-viewer-3d-mesh/id6445801487)

View, explore, and edit 3D models on your iPhone or iPad. Basic viewing is included with purchase, with optional upgrades for advanced creation, editing, and reporting features. Models are processed locally for privacy.

**Highlights:** Open and view STL files, Rotate, pan, and zoom models, Basic model information inspection, Create and edit 3D models, Measure distances and angles, Export to multiple file formats, Generate local PDF reports

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STL Viewer Pro Mensal | $2.99 | per month |
| STL Viewer Studio Mensal | $5.99 | per month |
| STL Viewer Pro Anual | $22.99 | per year |
| STL Viewer Studio Anual | $49.99 | per year |
| STL Viewer Pro Vitalício | $39.99 | one-time |


## Frequently asked questions

### Is Autodesk Fusion free?

Autodesk Fusion is free to download, with no in-app purchases.

### Is STL Viewer free?

STL Viewer costs $0.99, and also offers in-app purchases.

### Which has better reviews, Autodesk Fusion or STL Viewer?

STL Viewer is rated higher. Autodesk Fusion averages 4.5 out of 5 from 4.1K ratings, while STL Viewer averages 5.0 from 1 ratings.

### Do Autodesk Fusion or STL Viewer have ads?

Neither Autodesk Fusion nor STL Viewer shows ads.

### Which is updated more often, Autodesk Fusion or STL Viewer?

Autodesk Fusion ships an update monthly, and STL Viewer every 4 weeks. Most recently, Autodesk Fusion was updated on November 3, 2026 and STL Viewer on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*